The specific objective is to evaluate through analytical propedeutics medical improvement in clinical signs and symptoms related to plaque psoriasis. The study will be conducted with 40 patients who will deal with two symmetrical lesions of his body being identified by the clinician that a party should be treated in a double-blind only with mometasone furoate cream containing 0.1% and another with the combination of furoate of mometasone 0.1% + Salicylic Acid 5%. The group of patients to be treated must be adults of both sexes, aged 18-70 years with good mental and physical health to sign the Informed Consent and who are clinically assessed by dermatologists in the study as having mild plaque psoriasis and moderate. The association made a proposal of effectiveness was developed and is produced by the Laboratory Glenmark Pharmaceuticals Ltd., as well as its isolated version of the pilot (mometasone furoate 0.1%). This study should be characterized as Phase II multicenter not.